Setting The Pump Output - Vaillant ecoFIT sustain 615 Installation And Maintenance Instructions Manual

8 Adapting the unit to the heating installation
8.2

Setting the pump output

The product is equipped with a speed-regulated high-effi-
ciency pump, which adjusts independently to the hydraulic
conditions of the heating installation.
If you have installed a low loss header in the heating install-
ation, you should switch off the speed regulation and set the
pump output to a fixed value.
▶
If required, change the setting of the pump speed, which
depends on the operating mode, under diagnostics code
d.14.
Overview of diagnostics codes (→ Page 28)
8.2.1 Pump diagrams
12s:
B
350
300
250
200
150
100
50
0
0 200 400
A Remaining feed head
[mbar]
B Flow rate [l/h]
15s:
B
350
300
250
200
150
100
50
0
0 200 400
A Remaining feed head
[mbar]
B Flow rate [l/h]
18s:
20
1
2
600 800 1000
1 Max. PWM
2 Min. PWM
1
2
600 800 1000 1200
1 Max. PWM
2 Min. PWM
B
350
300
250
200
150
100
50
0
0 200 400
A Remaining feed head
[mbar]
B Flow rate [l/h]
25s:
B
450
400
350
300
250
200
150
A
100
50
0
0 200 400
A Remaining feed head
[mbar]
B Flow rate [l/h]
30s:
B
400
350
300
250
200
150
A 100
50
0
0 500
A Remaining feed head
[mbar]
B Flow rate [l/h]
Installation and maintenance instructions ecoFIT sustain 0020277252_00
1
2
600 800 1000 1200
1 Max. PWM
2 Min. PWM
2
600 800 1000 1200
1 Max. PWM
2 Min. PWM
2
1000 1400
1 Max. PWM
2 Min. PWM
A
1
A
1
A